| Value | Category | Cases | |
|---|---|---|---|
| 0 | No | 150 | 
                                    
                                    16.4%
                                 | 
| 1 | Yes | 746 | 
                                    
                                    81.8%
                                 | 
| 8 | Don't know | 16 | 
                                    
                                    1.8%
                                 | 
| Sysmiss | 5569 |